Good horror or slasher film to watch tonight???????

If you haven't seen "The Exorcist", the grand-daddy of 'em all, do yourself a favor and watch it. It still holds up after all these years. The "Saw" films are pretty good as well; though the last couple weren't as good as the first few. "28 Days Later" was pretty good. And, if you're into foreign-language cinema and don't mind subtitles, the Russians put out a film about vampires called "Night Watch" a few years back that's not too shabby.